In this thesis, an experimental comparison of the mechanical response of two different auxetic structures is presented. Auxetic materials exhibit a negative Poisson’s ratio, meaning that they expand laterally when subjected to tensile loading. Within the scope of this work, samples of two different auxetic geometries were manufactured using additive technologies, namely polymer 3D printing and metal powder 3D printing. The experimental part included compression and tensile tests as well as indentation tests, during which forces and displacements were measured. A high-speed camera was used to record the deformation behavior. Both geometries exhibited auxetic behavior under compression tests, while the geometry itself influenced the deformation response. Such structures have great potential for applications in areas where energy absorption, impact resistance, and structural adaptability are of key importance.
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